When I use the cleric's spell Binding Earth, it resets my auto attack (if it had 3 seconds left until use it would go to 0) and the character stops auto attacking until I manually use it again. I do have auto attack on.

This comes up quite a bit. This is working as intended. Root is intended to be CC, and auto attack weakens root, so it automatically turns it off. Sometimes I think I should just somehow change this to make it less confusing.